9)Ripple Rejection vs. Input Voltage
R1170X301B
60
50
Ripple Rejection RR(dB)
40
30
20
10
0
3
3.2
3.4
Input Voltage V
IN
(V)
R1170X301B
60
f = 400Hz
50
Ripple Rejection RR(dB)
40
30
20
10
0
3
3.2
3.4
Input Voltage V
IN
(V)
3.6
f = 10kHz
f =1kHz
I
OUT
= 100mA
C
OUT
= 10uF
3.6
f = 10kHz
f = 400Hz
Ripple Rejection RR(dB)
f =1kHz
I
OUT
= 1mA
C
OUT
= 10uF
60
f = 400Hz
50
40
30
20
10
0
3
3.2
3.4
3.6
Input Voltage V
IN
(V)
f = 10kHz
f =1kHz
R1170X301B
I
OUT
= 10mA
C
OUT
= 10uF
10)Input Transient Response (Topt=25°C)
R1170X151B
1.8
1.75
Output Voltage V
OUT
(V)
1.7
1.65
1.6
1.55
1.5
1.45
1.4
0
20
40
60
80
100
Time t(us）
120
140
160
180
Output Voltage
Input Voltage
tr=tf=10us
I
OUT
=100mA
C
OUT
=Ceramic 10uF
4
3.5
Input Voltage V
IN
(V)
3
2.5
2
1.5
1
0.5
0
200
Rev. 1.10
-13-
RICOH [ RICOH ELECTRONICS DEVICES DIVISION ]
